Vaporizing apparatus for hydrocarbon fuels.



J. A. DOBLE.

, VAPORIZYING APPARATUS FOR HYDRQCARBON FUELS. vAPPLICATION FI'L'ED'FEB. 4, 1914.

*LQQ Patented Aug. 24, 1915.

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VAPOlvIZING- APPARATUS FOB, HYDROCARBON FUELS.

Specification of Letters Patent. i Patented Aug, 24:, 1915,x

Application led February 4, 1914. Serial No. 816,587.

To /zl whom it may concern Be it known that I, JOHN ASHTON DOBLE,

'a citizen of the United States, and resident The novel features of the invention will be apparent from 'the following description,

vtaken in connection with the v accompanying drawing, in which:

i the line 2*-2 of Fig. 1; and Fig.3 is a modi- Figure 1is an elevation of an apparatus embodying my invention, certain .parts be.- ing shown in section; Fig. 2 1s a sectlon on fication .ofa part of the apparatus. Referring to the drawings, 1 0l indicates the usual boiler which is provided with the burner 11, this burner being of any suitable construction and shown in theform of a shallow pan-provided with a perforated cover. Surrounding the burner 11 and inclosing the. lower`side thereof is a wall -12 provided with circumferential openings 13.

- from which it passes by means of the pipe 14 to the inlet 15 of a fan'casing 16. Arranged il the fan casing 16 isa fan 17 which is mounted on the shaft 18 -ofa motor 19.

Hydrocarbon fuel is usually employed in connection with automobile boilers and I have shown a fuel supply pipe 20, the upper end of which is providedv with the nozzle openings 21 which are adapted to spray' the fuel into the center of the fan 17 where. it will unite with the current of air passing through theinlet 15. The fan, revolving at high speed, will break up the fuel into Very l fine particles whichwill readilyvaporize and-'form a perfect mixture which is discharged from the casing 16 through a pipe 22 to the burner. 11. Thefan 17 thusserves two functions, one being to draw the air through the inlets 13 to the chamber between theburne'r 11 and the -wall 12 Where-it is preliminarily heated, and the other being to break up thefuel into a. finely divided state so that it will readily vaporize.

In Fig. 3 I have shown a modification, of a portion of the apparatus, in which the nozzle openings 211 of the fuel pipe 20a discharge l*the vfuel into a chamber 23 from which it passes ythrough the port 24 to the fan 17. The chamber 23 and the pipe 20 constitute a carbureter, the chamber 23 being a mixing chamber.-

By means of my improvedl apparatus, I.

am' ena-bled to form a. more erfect mixture of the fuel and air than has een heretofore lformed in the burners of automobile boilers cilitating the vaporization of the fuel. Having thus described my invention, what In apparatus of the class described, the combination of a burner, a casing inclosing one side of the burner and provided with peripheral opening for the admission of air,

an outlet from said casing,`an inlet to said burner, a passa-ge connecting said outlet with said inlet, a rotary fan in said passage, a liquid lfuel supply nozzle in said passage, and a motorfor operating said fan, the parts being so arranged that the fuel is broken up and thoroughly mixed with the air by said fan.

In testimony whereof I afiX my signature in presence of two witnesses.

JOHN ASHTON DOBLE.

Witnesses:

WILLIAM O. MAURER,

JOHN W. ALLEN. f 

